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Final Part 3: Openstack TripleO Architecture and Step By Step Guide for installation of undercloud and overcloud nodes (compute, controller, ceph-storage)

Below list of topics are covered in this article Bring up undercloud director Prepare Undercloud for overcloud deployment Phases of overcloud node deployment Registration Introspection Deployment Registering an overcloud node Configure Virtual Bare Metal Controller

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Part 2: Openstack TripleO Architecture and Step By Step Guide for installation of undercloud and overcloud nodes (compute, controller, ceph-storage)

Below list of topics are covered in this article Bringup Undercloud setup Verifying undercloud Installation Os-net-config Creating Directories for Templates and Images Install director images Upload overcloud images Setting a Nameserver on the Undercloud’s Neutron

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Part 1: Openstack TripleO Architecture and Step By Step Guide for installation of undercloud and overcloud nodes (compute, controller, ceph-storage)

In the article we will cover below topics Undercloud Overcloud TripleO architecture Undercloud Director Virtual Machine Validate FQDN of the undercloud director Register your undercloud node Installing the Director Packages Creating user for undercloud deployment

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How to check memory usage of an individual process or application/program in Linux

We know there are various tools available which can help you get the memory related information from the system, some of them are listed below Report short summary of memory utilization statistics. # free Report

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How to enable or disable transparent (THP) and explicit (nr_hugepages) hugepage and check the status in Linux with examples (explained in detail)

Below list of topics are covered in this article: Types of HugePages How to disable Transparent Hugepages on runtime How to disable Transparent Hugepages permanently using GRUB2 How to disable Transparent Hugepages permanently using tuned

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What is transparent hugepage (THP) and how to check THP usage per process in Linux (Explained)

Hugepages is a feature that allows the Linux kernel to utilise the multiple page size capabilities of modern hardware architectures. Memory is managed in blocks known as pages. A page is 4096 bytes. 1MB of

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How to check and compare rpm version and release in Linux using bash script

In my last article I had shared some samples script examples to compare decimal values and floating numbers by converting them into integer which can work well for some scenarios but would not be the

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How to reset or change lost root password in RHEL / CentOS 7

In Red Hat Enterprise Linux/Cent OS 6 changing root password was quiet easy (well it is easy if you know the steps and it is hard if you don't) For RHEL / CentOS 7 the

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